30634900 has 18 divisors (see below), whose sum is σ = 66477950. Its totient is φ = 12253920.

The previous prime is 30634889. The next prime is 30634909. The reversal of 30634900 is 943603.

It can be written as a sum of positive squares in 3 ways, for example, as 2396304 + 28238596 = 1548^2 + 5314^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30634909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153075 + ... + 153274.

Almost surely, 2^30634900 is an apocalyptic number.

It is an amenable number.

30634900 is an abundant number, since it is smaller than the sum of its proper divisors (35843050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30634900 is a wasteful number, since it uses less digits than its factorization.

30634900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306363 (or 306356 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30634900 is about 5534.8803058422. The cubic root of 30634900 is about 312.8999465850.

The spelling of 30634900 in words is "thirty million, six hundred thirty-four thousand, nine hundred".